Clutch



(No Model.)

C.. WERNER..

CLUTCH.

No. 388,233. Patented Aug. 21, 1888.

Wlnenses: CJM. J6?) @9W Unirse @rares 'Paritair Ormes.

OHRTSTAN VFJHNER, OF BUFFALO, NEW YORK.

CLUTCH.

SPECIFICATION forming part of Letters Patent No. 388,233, dated August 2l, 1888 Application tiled April 30, 1888.

To (,ZZ whom it may concern.-

Beit known that I, CHRISTIAN YVEHNER, of the city of Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Glutches,of which the following is a specification.

rlhis invention relates to that class of clutch mechanisms which are employed for converting reciproca-ting or oscillating motion into rotary motion, and more particularly to an improvement on the clutch described and shown in Letters Patent No. 360,262, granted to me March 29, 1887.

Itis found in practice that when the clutch is abundantly lubricated the friction-rollers arranged between the canrshaped ribs of the hub and the ring surrounding the hub are liable to slip and impair the operation of the clutch.

The object of my invention is to construct these friction-rollers and their bearing-surfaces in such a manner as to effectually prevent slipping ofthe rollers; and theinvention consists of the improvements which will be here inafter set forth, and pointed ont in the claims.

In the accompanying drawings, Figure 1 is a sectional side elevation of my improved clutch. Fig. 2' is across-section thereof in line 00 a, Fig. l.

Like letters of reference refer to like parts in both figures.

A represents the hub,which turns loosely on a shaft or arbor, b. The hub A is provided with recesses c, which are formed in the face of the hub at equal distances apart, and are separated by the intervening projecting portions d. The hub Ais providedin its recesses with cams or eccentric portions E, each of which is provided on its face with a central rib or feather, e, extending lengthwise over each cam.

e," represents gear-teeth formed in the faces of the earn-ribs c and extending from end to end thereof.

F represents the ring which surrounds the hub A, and which is provided with a wheel or pulley, f. The ring F is secured to the shaft b by means of a set-screw, f', which passes through a collar, f2, formed on the outer side of the ring F.

G represents the frietionrollers arranged Serial No. 272,333, (No model.)

in the recesses c of the hub between the ribs e and the ring F. The central portion of each frictionroller is contracted or grooved and provided with gear-teeth g, which mesh with the teeth e of the eanrribs e. The face portions of the friction-rollers Gbear against the surrounding ring F, and only their contracted toothed portions q bear against the toothed ribs e. The teeth of the ribs e and `frictionrollers G Aprevent the rollers from slipping on the ribs e and compel the same to take a firm hold on the inner surface of the ring F.

h represents flat springs secured to the projecting portions d of the hub and bearing against the adjacent faces of the friction-rollers G, so as to force the same forwardly toward the contracted end of the recesses c in contact with the toothed ribs c and ring F and prevent lost motion in starting the clutch. The outer portions of these springs are concave and curved concentric with the faces of the frictioxrrollers so as to fit snugly against the same.

The hub A is provided with an annular flange, z', which bears against the adjacent side of the ring F and conlines the friction-rollers in the ring, the hub being held in place by a collar, j, secured to the arbor b on the outer side of the hub. rlhe hub A is preferably provided with an actuating-lever, K, as shown in Fig. 2.

My improved clutch mechanism may be einployed for operating the driving-wheels of veloeipedes, the blowers of forges, foot and hand powers, and for various other purposes in which reciprocating or oscillating motion is to be converted into rotary motion.

I clailn as my inventionl. The combination, with the hub A, provided with ea1n-shaped ribs e, having teeth e', of a ring, F, surrounding the hub, and frietion-rollers G, arranged between the hub and ring and provided with teeth g, meshing with the teeth of said cam-ribs, substantially as set forth.

2. The combination, with the hub A, provided on its face with recesses c, separated by projections d, and cam-shaped ribs c, formed on the hub in the recesses c, and having gearteeth e, of a ring, F, surrounding the hub, and friction-rollers G, arranged inthe recesses Ioo c, and provided with a Gontaoted portion having-gear-teeth g, which engage with the teeth 0f the cam-ribs e, substantially as set forth.

3. The combination, with the hub A, provided With camshaped ribs e, having gem'- teeth e', of a ring, F, surroundingl the hub, friction-rollers G, arranged between the hub and ring and provided with gear-teeth g, and springs h, secured to the hub and bearing against the friction-ro11ers, substantially as set xoV forth.

Witness my hand this 25th day of April, 1888.

CHRISTIAN WEHNER.

Witnesses:

CARL F. GEYER, FRED. C. GEYER. 

